Mattress-sewing machine.



. W. A. KELSEY & J. G. STONEBACK. MATTRESS SEWING MACHINE. APPLICATIONFILED|0CT.8. 1913 Patented Sept. 7, 1915.

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W. KELSEY & J. G. STONEBACK.

MATTRESS SEWING MACHINE.

' 7 APPLICATION FILED OCT-3.1913. 1,152,41. v PatentedSept. 7, 1915.

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W. A. KELSEY & J. G. STONEB'ACK.

MATTRESS 'SEWING MACHINE.

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WITNESSES:

INVEN TOR S Y K m E S L R EN .0 Km n sfl d L Mw Wu W. A. KELSEY & J. G.STONEBACK MATTRESS SEWING MACHINE, 1,15,41

WILLARD A. KELSEY AND JOHN G. STONEBAGK, OF 'TOPEKA, KANSAS.

MATTRESS-SEWING MACHINE.

Specification of Letters Patent.

Patented Sept. 7, 1915.

Application filed October 8, 1918. Serial No. 794,079.

To all whom it may concern:

Be it known that we, WILLARD A. KELSEY and JOHN G. SToNnBAoK, citizensof the United States, residing at Topeka, in the county of Shawnee andState of Kansas, have invented certain new and useful Improvements inMattress-Sewing Machines, of which the following is a specification.

This invention relates to machines for forming and sewing rolls on thecorners of mattresses.

The object of the invention is to provide a combined roll-forming andsewing machine, of simple construction and reliable operation.

Mattresses of the kind intended to be operated upon by this machine areusually stuffed with cotton. The nature of the rolls referred to isunderstood by those skilled in the art. j

In order that the invention may be fully understood, reference will nowbe made to the accompanying drawings, in which:

Figure 1 is a side elevation of a machine embodying our invention. Fig.2 is a plan view. Fig. 3 is an elevation of the opposite side to thatshown in Fig. 1. Fig. 4 is a. vertical section on a line IV-IV ofFig. 1. Fig. 5 is a detail view of the packing needle, partly invertical section. Fig. 6 is a detail View sectioned on a line VIVI ofFig. 5. Fig. 7 is a detail view sectioned on a line VIIVII of Fig. 5. F'rg. 8 is a cross section of a stitched mattress-roll.

The frame of the machine comprises a base 1, a vertical niattressguide2, an overhanging mattress-guide 3,21. central web 4, and a mainjournal-frame 5. The mattressguide 3 is rectangular in outline and liestransversely of the main frame. 3 are stiffening. ribs thereon. Fixedlymounted on the part 3 is a segmental plate 6, having a segmental,inclined rib 6 thereon.

7 is the sewing needle, which reciprocates in a straight path andthrough small openings 3, 2 in plates 3 and 2, respectively.

-8 is the packing needle, which passes through slots 2", 3", in plates2, 3, respectively, and reciprocates in an irregular path in a verticalplane. Both needles traverse in upwardly and outwardly inclined pathswhich intersect the mattress when the latter is held in position in theangle formed by the guides 2, 3. The packing needle 8 is mounted in aneedle bar 9 which is pivotally connected to a link 10 by a pin 12.

Said link is pivotally connected to a crosshead 13 by a pin 14.Cross-head 13 is guided in a straight path by slotted ways 15, 16, oneof which is on web 4, the other being a detachable plate 17, secured byscrews 18. Mounted on opposite sides of needle-bar '9 aretwoguide-rollers 19, 20, set at different points longitudinally. Roller 19.travels in an inclined slot 21 which communicates with straight slot15. The opposite roller 20 travels in a straight slot 22 which is anextension of the crosshead way 16.

Rigidly secured to the top of crosshead 13 is an arm 23, which isconnected by a pin 24 to a pitman 25, which is driven by a pm 26 andcrank 27. Said crank is keyed on a vertical shaft 28, held in bearings29,

30. Shaft 28 carries a bevel gear 31 which is driven by a bevel gear 32on a shaft 33, on which is a pulley 34 to receive a driving belt. Whencrank 27 is at one end of its throw, the needle 8 will be infullyextended position, as shown. Motion of said crank will cause roller19 to rise in its guide slot 21, thereby depressing the needle 8 tosubstantially horizontal position before it is withdrawn. Further motionretracts the needle in a horizontal line. The following outward strokeof the crank throws the needle outward. About the time the roller 19enters the inclined slot 21, the other roller 20 strikes the end of itsslot. LinklO continues to advance, thereby forcing the inner end of theneedle-bar downward and outward as roller 19 travels in slot 21. Thusthe needle 8 is forced upward as it passes into the corner of themattress.

The sewing needle, 7, is mounted in a needlebar 35 which reciprocates ina T-slot 36 cast in the frame web 4. Needle-bar 35 is actuated by apitman 37, connected thereto by a screw 38. Pitman'37 is pivoted by apin 39 to a longitudinal slide-bar 40, mounted between guides 41 havinglugs 42 fastened to the base 1. Slide-bar 40 is provided with a rigidarm 43, which is pivotally connected by a link 44 to a stud 45 on a.crank 46, keyed on the vertical shaft 28. The path of the sewing needleis slightly below, and at one side of, that of the packing needle. Saidneedles move approximately in unison, that is, in the same directions atthe same times. The sewing needle is supplied with thread from a spool47. The thread 48 passes through a tension device 49, thence through aneye in a take-up arm 50, thence through the needles eye 51. Said take-uparm is oscillated through a train of gears 52, 53, 54 by a rock-arm 55.Arm 55 has a longitudinal slot 56 into which projects a stud 57 carriedby the needle-bar 35.

Referring to Fig. 2, 58 is the shuttle-carrier, which is fastened withscrews 59 to an oscillating arm 60, fulcrumed on a stud 61 on a fixedbracket 62. The outer end of arm 60 rests upon plate 6. Spaced abovesaid plate is an arcuate upper guide 63 secured-to the former by screws64. The

.curve of the plate 6 and its rib 6, is conis a longitudinal slot 68. Aconnection bolt 69 is firmly secured at a desired point in slot 68 by anut 70. Said bolt passes slidably through slot 66 of arm 65 and carriesa nut 71 which bears on a shoulder of the bolt but not on said arm. Bythis mechanism the arm 60-65 will be, oscillated by the rotation of theshaft 28, and the stroke of said arm will be adjustable by adjusting theconnecting bolt 69 radially in the crank 67.

Operation: The operator turns the drivebelt sufiiciently to retract boththe needles 7 and 8, to leave the angular space clear for amattresscorner. He then inserts one of the horizontal upper corners of themattress in the angle formed by the guides 2, 3, and

starts the machine. The packing needle 8 penetrates the corner of themattress, first in a nearly horizontal direction, which changes to anupward, prying motion as it advances. This motion compresses a portionof the filling into the corner of the covering fabric.

Simultaneously the-other needle 7 carries the thread through themattress as at 72, Fig. 8, leaving a loop projecting through the needleopening when the needle recedes. As soon as the needle recedes theshuttle is carried through the loop by the carrier 58, and the loop isclosed by the take-up arm 50. The shuttle is then carried back toinitial position. At the moment when both needles are fully retracted,the operator advances the mattress by the length ofa stitch, and theabove describ d operations are repeated.

A support and feeding device may be employed for feeding the mattresses.

Having thus described our invention, what we claim and desire to secureby Letters Patent is:

1. In. a machine of the kind described, :1

mattress-guide forming a right-angled recess, a reciprocatingpacking-needle traveling partly across said recess, means to cause saidneedle to move toward the apex of said angle as it advances, means toreciprocate said needle, and sewing means adapted to form a row ofstitches through a corner of a mattress.

3. In a machine of the kind described, a needle-bar, provided withprojecting rollers, guides having grooves for guiding said rollers,means for reciprocating said needle-bar, said grooves being adapted toshift the angle of the needle-bar as said bar inserts and withdraws theneedle, and a packing-needle.

4. In a machine of the kind described, a crosshead, a needle-bar, a linkconnecting said parts, rollers projecting from the needle-bar,roller-guides adapted to shift the angle .of the needle-bar as said barinserts and withdraws the needle, a packing-needle, and means forreciprocating the crosshead.

5. In a machine of the kind described, a. needle-bar 9, a packing needle8, rollers 19, 20 on said bar, guiding slots 21, 15, 22 for saidrollers, a link 10, and means for reciprocating said link, substantiallyas described.

6. In a machine of the kind described, vertical and horizontalmattress-guides forming a right-angled recess, a needle-bar 9, a packingneedle 8 having a path partly across said recess through one of saidguides,

.rollers 19, 20 on said needle-bar, guiding slots 15, 21, 22 for saidrollers, a link 10, and means for reciprocating said link, substantiallyas described.

7. In a machine of the kind described, a needle-bar, apacking-needlecarried thereby, two rollers projecting fi om opposite sides of saidneedle-bar, a driving link connected with said needle-bar, tworollerguides for said respective rollers, one of said guides beingstraight from end to end, the other having an inclined offset in itsouter end, the roller traveling in the straight groove serving as apivot upon which the needle-bar is turned in performing its function.

8. In a machine of the kind described, a guide for a horizontal cornerof a mattress, a packing needle adjacent said guide, means for forcingsaid packing needle into the mattress in one direction and then changingits course to stuff a portion of the filling into one corner of themattress, and means for sewing through the mattress between its bodyportion and the compressed portion of the filling.

9. In a machine of the kind described, a mattress guide, a packingneedle adjacent said guide, means for forcing said packing needle intothe mattress in one direction and and then changing its course to stuffa portion of the filling into one corner of the mattress, areciprocating sewing needle arrangedto operate close to the packingneedle, a shuttle carrier, and means for actuating said shuttle carrier.

10. In a machine of the kind described, a

mattress guide, a packing. needle adjacent said guide, a sewing needleadjacent said packing needle, a shuttle carrier to coaot means foractuating said needles and the shuttle carrier from said shaft, andmeans for changing the course of the packing needle after enterin themattress so that it will stufl a portion 0 the filling into one cornerof said mattress.

In testimony whereof we aifix ,our signatures, in the presence of twoWitnesses.

WILLARD A. KELSEY. JOHN G. STONEBAOK. Witnesses:

G. P. BENSON, W. H. KIESALT.

